Russian Research Center “Kurchatov institute”, Moscow, Russia

The problem of stationary allocation of a current in the cylindrical channel with a non-uniform integrated electron density is resolved within the framework of the electronic magnetohydrodynamics. It is rotined, that the character of weep of a current essentially depends on quantity of the electron magnetic parameter w t at presence of periodic inhomogeneity of an integrated electron density along a conductor. At w t > 1 weep of a current in a conductor happens as a zigzag. The pinch of resistance of the channel arises owing to zigzag weep of a current as a function of the electron magnetic parameter, the amplitude and the gauge of density inhomogeneity.